We therefore can calculate that the total energy the sun has to burn is around 1.3 x 1044 Joules. Dividing 3.8 x 1026 Watts (the rate at which the sun is giving off energy) into this number gives an approximate value of 10 billion years for the sun's lifetime.
Answer:
Sorry, I'm confused there has to be more to it if there is not then there is no true way for anyone to fill in the blanks. <3